Just as the title states.. I bought a used STiR+ on ebay, had it professionally installed, and it's working great except for one problem... Every time I honk the horn, it triggers a false laser alert -- usually a rear alert, but sometimes a front alert. A page on the Bell website states the following: Since I bought it used, I suspect they won't be keen on fixing the unit as mentioned. Also, the way that text is written ("same thing in other cars..."), it sounds like it's more for portable radar+laser units and not the hardwired STiR/9500ci type units. Has anyone seen and/or solved this on their own before? I don't know if the RF interference from the horn emanates from the horn itself, or from other electronics in the Model S... and do the laser heads themselves receive the RF interference, or is it the main controller/head unit for the STiR+? I'm considering trying to re-route some of the wires if they run near the horn (I had the STiR+ professionally installed).. or maybe just replacing the stock Tesla horn? Any suggestions? Thanks.